TMS320VC5409ZGU-80

定点数字信号处理器 FIXED-POINT DIGITAL SIGNAL PROCESSOR

Introduction

The TMS320VC5409 fixed-point, digital signal processor DSP hereafter referred to as the 5409 unless otherwise specified is based on an advanced modified Harvard architecture that has one program memory bus and three data memory buses. This processor provides an arithmetic logic unit ALU with a high degree of parallelism, application-specific hardware logic, on-chip memory, and additional on-chip peripherals. The basis of the operational flexibility and speed of this DSP is a highly specialized instruction set.

TMS320VC5409 Features

• Advanced Multibus Architecture With Three Separate 16-Bit Data Memory Buses and One Program Memory Bus

• 40-Bit Arithmetic Logic Unit ALU, Including a 40-Bit Barrel Shifter and Two Independent 40-Bit Accumulators

• 17- × 17-Bit Parallel Multiplier Coupled to a 40-Bit Dedicated Adder for Non-Pipelined Single-Cycle Multiply/Accumulate MAC Operation

• Compare, Select, and Store Unit CSSU for the Add/Compare Selection of the Viterbi Operator

• Exponent Encoder to Compute an Exponent Value of a 40-Bit Accumulator Value in a Single Cycle

• Two Address Generators With Eight Auxiliary Registers and Two Auxiliary Register Arithmetic Units ARAUs

• Data Bus With a Bus-Holder Feature

• Extended Addressing Mode for 8M × 16-Bit Maximum Addressable External Program Space

• 16K x 16-Bit On-Chip ROM

• 32K x 16-Bit Dual-Access On-Chip RAM

• Single-Instruction-Repeat and Block-Repeat Operations for Program Code

• Block-Memory-Move Instructions for Better Program and Data Management

• Instructions With a 32-Bit Long Word Operand

• Instructions With Two- or Three-Operand Reads

• Arithmetic Instructions With Parallel Store and Parallel Load

• Conditional Store Instructions

• Fast Return From Interrupt

• On-Chip Peripherals

   − Software-Programmable Wait-State Generator and Programmable Bank Switching

   − On-Chip Phase-Locked Loop PLL Clock Generator With Internal Oscillator or External Clock Source

   − Three Multichannel Buffered Serial Ports McBSPs

   − Enhanced 8-Bit Parallel Host-Port Interface With 16-Bit Data/Addressing

   − One 16-Bit Timer

   − Six-Channel Direct Memory Access DMA Controller

• Power Consumption Control With IDLE1, IDLE2, and IDLE3 Instructions With Power-Down Modes

• CLKOUT Off Control to Disable CLKOUT

• On-Chip Scan-Based Emulation Logic, IEEE Std 1149.1† JTAG Boundary Scan Logic

• 12.5-ns Single-Cycle Fixed-Point Instruction Execution Time 80 MIPS for 3.3-V Power Supply 1.8-V Core

• 10-ns Single-Cycle Fixed-Point Instruction Execution Time 100 MIPS for 3.3-V Power Supply 1.8-V Core

• Available in a 144-Pin Plastic Thin Quad Flatpack TQFP PGE Suffix and a 144-Pin Ball Grid Array BGA GGU Suffix